U.S. flag

An official website of the United States government

GTR Home > Genes

GJB1 gap junction protein beta 1

Gene ID: 2705, updated on 27-Aug-2024
Gene type: protein coding
Also known as: CMTX; CX32; CMTX1

Summary

This gene encodes a member of the gap junction protein family. The gap junction proteins are membrane-spanning proteins that assemble to form gap junction channels that facilitate the transfer of ions and small molecules between cells. According to sequence similarities at the nucleotide and amino acid levels, the gap junction proteins are divided into two categories, alpha and beta. Mutations in this gene cause X-linked Charcot-Marie-Tooth disease, an inherited peripheral neuropathy. Alternatively spliced transcript variants encoding the same protein have been found for this gene. [provided by RefSeq, Oct 2008]

Genomic context

Location:
Xq13.1
Sequence:
Chromosome: X; NC_000023.11 (71215239..71225516)
Total number of exons:
4

Links

IMPORTANT NOTE: NIH does not independently verify information submitted to the GTR; it relies on submitters to provide information that is accurate and not misleading. NIH makes no endorsements of tests or laboratories listed in the GTR. GTR is not a substitute for medical advice. Patients and consumers with specific questions about a genetic test should contact a health care provider or a genetics professional.